My friends having a dilema having just one vehicle to go to work with and wouldn't be able to afford to keep spending if it is deemed unrepaired. The GMC Jimmy,1995 4.3 vortex,purchased 2 yrs ago was running perfect until recently. It has been running really rough especially when on idle like its missing. Pressure gauge dial goes up & down. She has changed all plugs, wires,distributor cap & rotor. Added a BG 44k injector cleaner, filled it up w/high octane shell gas. All this didn't seem to have solve the problem. She took it to a local mechanic and he didn't seem to know what could be causing it. Seemed like to me it needs cleaning somewhere because the exhaust smells dirty. I told her I get some really good help on this column and we'll hope we do with this problem. Thanks so much for helping.
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What is wrong with the GMC Jimmy?
- Thread starter tagara
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dick car guy
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yea first thing I would do is get under the truck and find the in line fuel filter, it is probably next to a frame rail, and often times gets missed as it ends up covered in mud and dirt and grime. It has one its a cannister looking thing, I see its missing from your list, it would have been first on mine, and if the fuel injection is real dirty then take it for a good long drive after changing the fuel filter, as to her retarded mechanic, find one who can get his head out of his butt and actually find the problem. best of luck, let us know how it goes, FIND THAT FUEL FILTER!!!!
robertguero
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"Pressure gauge dial goes up & down"
I figure you are referring to the oil pressure gauge. Simple replace of sending unit might fix that.
There are so many things it could be but without seeing it makes it hard to troubleshoot.
Vacuum hoses, brake power assist has a hole in diagram, fuel pressure regulator. How is the fuel pressure? What does the vacuum read?
There are alot of things to look at.
I figure you are referring to the oil pressure gauge. Simple replace of sending unit might fix that.
There are so many things it could be but without seeing it makes it hard to troubleshoot.
Vacuum hoses, brake power assist has a hole in diagram, fuel pressure regulator. How is the fuel pressure? What does the vacuum read?
There are alot of things to look at.